Question 1

What is the science behind this prediction?

Accepted Answer

This predictor is based on the Laws of Thermodynamics and the Constant Lean Body Mass (LBM) model. First, we calculate your current LBM (your weight minus your fat). Then, we calculate what your total weight would be at your target body fat percentage. Since losing 1kg of pure fat requires burning approximately 7700 kcal, we convert the total fat difference into calories, and divide it by your daily deficit to find the total days required.

Question 2

Which deficit strategy should I choose?

Accepted Answer

Conservative (300 kcal): Lowest risk of rebound, best for protecting muscle mass, very low hunger. Ideal for long-term consistency or those who are already lean.
Standard (500 kcal): The industry gold standard. Ensures steady fat loss while maintaining good workout performance.
Aggressive (700+ kcal): Fastest results, but highly associated with muscle loss, fatigue, and metabolic crashing. Only recommended for very overweight individuals or short-term contest prep under professional guidance.

Question 3

How do I prevent muscle loss while cutting?

Accepted Answer

This predictor mathematically assumes 100% of the weight you lose is pure fat. To make reality match this ideal calculation, you must do two things:
1. Keep lifting heavy (gives your body a reason to keep the muscle).
2. Eat sufficient protein (aim for 2g - 2.2g per kg of body weight). Use our Whey Protein Planner to organize your intake.

Question 4

Is this date absolutely guaranteed?

Accepted Answer

No. Human metabolism is incredibly complex. Water retention, cortisol from stress, poor sleep, or menstrual cycles mean weight loss is never a perfectly straight line. Assuming you carefully track your calories and stick to the deficit, this tool provides a medically reliable "trendline expectation", but daily scale fluctuations are completely normal.

Question 5

What should I do if I hit a weight loss plateau?

Accepted Answer

A plateau (weight unchanged for >2 weeks) usually means metabolic adaptation has occurred—because you weigh less now, your "maintenance baseline" has dropped, erasing your original deficit. You must take action: either increase your daily activity (e.g., add 20-30 mins of cardio/walking) or cut another 100-200 calories from your daily diet.

Fat Loss Timeline Predictor

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